I was aware that EL notified Hochstein in advance -- and I do think EL deserves credit for this example of good sportmanship.

But I cannot tell why you brought it up in the context of the leak to TSL.
Are you saying that Hochstein's consequent need to cancel at MA had the inevitable side effect of setting tongues wagging? And that other people started putting two and two together? That scenario is sort of plausible to me.
I hope that you are not saying that Hochstein deliberately leaked the EL withdrawal directly to TSL.
I am not 100% sure, but I thought I remembered that TSL referred to an unnamed Toyota source when they posted the blind item about EL's withdrawal. (But maybe I am confusing the words they used for the EL post with the words they used for their Gracie Gold posts.)

No, I am not saying that Grant deliberately leaked the information directly to TSL. However, the more people that know about the injury and WD (Grant, coaches, training partners, etc) the higher probability that the information gets leaked.

Moreover, you previously stated that someone in the "Lysacek camp" leaked the information to TSL. While there is no evidence that the "Lysacek camp" leaked any info to TSL, Evan did disclose the injury to others.

Just because the TSL has a secret Toyota Sports Center Source, that does not mean that the source is part of the "Lysacek camp." Evan was training full time at Toyota Sports Center. I am sure word spread quickly when Evan had to stop training because of the injury (especially given the close proximity to the date of the SLC competition) Skaters talk. Coaches talk.